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57
Total
85
DNS
20
Email
65
Security
35
Network
60
Availability
Domainz.ai
IPv43
IPv60
MX records3
StatusActive
Domain technical report

z.ai

z.ai

Generated: 2026-08-10T20:47:40-05:00 · Cached result

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IPv43
IPv60
MX3
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

3 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

2 NS record(s); 2 or more required.

✓
SOA record10 / 10 pts · Dns

Authoritative zone record.

✓
DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

!
CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

3 MX record(s).

!
SPF0 / 25 pts · Mail

SPF policy not found.

!
DMARC0 / 25 pts · Mail

DMARC policy not found.

!
DKIM0 / 20 pts · Mail

No tested DKIM selector responded.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

108 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

!
HTTP security headers0 / 35 pts · Security

0 of 9 evaluated headers detected.

!
PTR reverse DNS0 / 30 pts · Network

PTR not detected.

✓
IPv4 diversity35 / 35 pts · Network

Two or more IPv4 addresses receive full points.

!
IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓
DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

!
HTTP response0 / 40 pts · Availability

No successful HTTP response.

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

4 record(s)
alb-20yq6l9a68bmyj3l02.ap-southeast-1.alb.aliyuncsslbintl.com.
8.216.131.83
8.216.131.99
8.216.131.225

AAAA

1 record(s)
alb-20yq6l9a68bmyj3l02.ap-southeast-1.alb.aliyuncsslbintl.com.

CNAME

1 record(s)
alb-20yq6l9a68bmyj3l02.ap-southeast-1.alb.aliyuncsslbintl.com.

MX

3 record(s)
1 mx1.feishu.cn.
10 mx3.feishu.cn.
5 mx2.feishu.cn.

TXT

1 record(s)
alb-20yq6l9a68bmyj3l02.ap-southeast-1.alb.aliyuncsslbintl.com.

NS

2 record(s)
vip8.alidns.com.
vip7.alidns.com.

SOA

1 record(s)
vip7.alidns.com. hostmaster.hichina.com. 2025121107 3600 1200 86400 600

CAA

0 record(s)
—

Not configured

DS

1 record(s)
alb-20yq6l9a68bmyj3l02.ap-southeast-1.alb.aliyuncsslbintl.com.

DNSKEY

1 record(s)
alb-20yq6l9a68bmyj3l02.ap-southeast-1.alb.aliyuncsslbintl.com.

RRSIG

1 record(s)
;; communications error to 69.64.44.20#53: timed out

NSEC

0 record(s)
—

Not configured

NSEC3

1 record(s)
alb-20yq6l9a68bmyj3l02.ap-southeast-1.alb.aliyuncsslbintl.com.

SRV

0 record(s)
—

Not configured

NAPTR

0 record(s)
—

Not configured

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Not configured
—

Not configured

DMARC

Not configured
—

Not configured

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

No data
Title
Description
Final URL
https://z.ai/
HTTP status

HTTP

Status
Final URL
https://chat.z.ai/
Version
2
Server
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Sectigo Limited
CN
*.z.ai
Valid from
2025-10-26T19:00:00-05:00
Valid until
2026-11-27T17:59:59-06:00
Days remaining
108
Protocol
TLSv1.2
Cipher
ECDHE-RSA-AES128-GCM-SHA256

Security headers

0 active
—
HSTSNot detected
—
Content Security PolicyNot detected
—
X-Content-Type-OptionsNot detected
—
X-Frame-OptionsNot detected
—
Referrer PolicyNot detected
—
Permissions PolicyNot detected
—
Cross-Origin-Opener-PolicyNot detected
—
Cross-Origin-Embedder-PolicyNot detected
—
Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
8.216.131.225, 8.216.131.83, 8.216.131.99
309,80 ms
Cloudflare
1.1.1.1
8.216.131.225, 8.216.131.83, 8.216.131.99
145,97 ms
Quad9
9.9.9.9
8.216.131.225, 8.216.131.83, 8.216.131.99
210,22 ms
OpenDNS
208.67.222.222
8.216.131.225, 8.216.131.83, 8.216.131.99
66,21 ms
AdGuard
94.140.14.14
8.216.131.225, 8.216.131.83, 8.216.131.99
233,96 ms

IP, geolocation and ASNAssociated network information

8.216.131.83

No data
success
No
country
region
city
asn
organization
isp

8.216.131.99

No data
success
No
country
region
city
asn
organization
isp

8.216.131.225

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

mx1.feishu.cn

Port 25: Closed/unreachable - 23.8 ms - 
Port 465: Closed/unreachable - 4039.9 ms - 
Port 587: Closed/unreachable - 4004.2 ms -

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